diff --git a/src/mac/carbon/toplevel.cpp b/src/mac/carbon/toplevel.cpp
index c2e4bb3576..909567b618 100644
--- a/src/mac/carbon/toplevel.cpp
+++ b/src/mac/carbon/toplevel.cpp
@@ -615,8 +615,10 @@ bool wxTopLevelWindowMac::Show(bool show)
         return FALSE;
 
     if (show)
-    {
-      ::TransitionWindow((WindowRef)m_macWindow,kWindowZoomTransitionEffect,kWindowShowTransitionAction,nil);
+    { 
+      // this is leading to incorrect window layering in some situations
+      // ::TransitionWindow((WindowRef)m_macWindow,kWindowZoomTransitionEffect,kWindowShowTransitionAction,nil);
+      ::ShowWindow( (WindowRef)m_macWindow ) ;
       ::SelectWindow( (WindowRef)m_macWindow ) ;
       // no need to generate events here, they will get them triggered by macos
       // actually they should be , but apparently they are not
@@ -627,7 +629,9 @@ bool wxTopLevelWindowMac::Show(bool show)
     }
     else
     {
-      ::TransitionWindow((WindowRef)m_macWindow,kWindowZoomTransitionEffect,kWindowHideTransitionAction,nil);
+      // this is leading to incorrect window layering in some situations
+      // ::TransitionWindow((WindowRef)m_macWindow,kWindowZoomTransitionEffect,kWindowHideTransitionAction,nil);
+      ::HideWindow( (WindowRef)m_macWindow ) ;
     }
 
     if ( !show )
diff --git a/src/mac/toplevel.cpp b/src/mac/toplevel.cpp
index c2e4bb3576..909567b618 100644
--- a/src/mac/toplevel.cpp
+++ b/src/mac/toplevel.cpp
@@ -615,8 +615,10 @@ bool wxTopLevelWindowMac::Show(bool show)
         return FALSE;
 
     if (show)
-    {
-      ::TransitionWindow((WindowRef)m_macWindow,kWindowZoomTransitionEffect,kWindowShowTransitionAction,nil);
+    { 
+      // this is leading to incorrect window layering in some situations
+      // ::TransitionWindow((WindowRef)m_macWindow,kWindowZoomTransitionEffect,kWindowShowTransitionAction,nil);
+      ::ShowWindow( (WindowRef)m_macWindow ) ;
       ::SelectWindow( (WindowRef)m_macWindow ) ;
       // no need to generate events here, they will get them triggered by macos
       // actually they should be , but apparently they are not
@@ -627,7 +629,9 @@ bool wxTopLevelWindowMac::Show(bool show)
     }
     else
     {
-      ::TransitionWindow((WindowRef)m_macWindow,kWindowZoomTransitionEffect,kWindowHideTransitionAction,nil);
+      // this is leading to incorrect window layering in some situations
+      // ::TransitionWindow((WindowRef)m_macWindow,kWindowZoomTransitionEffect,kWindowHideTransitionAction,nil);
+      ::HideWindow( (WindowRef)m_macWindow ) ;
     }
 
     if ( !show )